Advantech Data Acquisition Modules ADAM 4000 - Manual (Page 255)

Digital I/O and Relay Output
Counter/Frequency Command Set
7-20 ADAM 4000 Series User’s Manual
$AAX0TTTTDDDD
Name Write Safety Value command
Description Force the DO channels to safety status when communication
is in time-out and over pre-defined period.
Syntax $AAX0TTTTDDDD(cr)
$ is a delimiter character.
AA (range 00-FF) represents the 2-character hexadecimal
address that you will access to.
X0 is the Write Safety Value command.
TTTT is the time, 100 ms per number.
DDDD is the four-hexadecimal character representing the
desired input safety value. The first character D is always 0,
and the others are the channels values.
For Example, 017A
First character is always 0
The meaning of 17A is as follows:
Digital value 0 0 0 1 0 1 1 1 1 0 1 0
Adam-4056SO channel no. 11 10 9 8 7 6 5 4 3 2 1 0
17A means that the status of channel 1, 3, 4, 5, 6, 8 is ON;
and the rest are OFF.
(cr) is the terminating character, carriage return (0Dh).
Response >(cr) if the command was valid.
?AA(cr) if an invalid command has been issued.
There is no response if the module detects a syntax or
communication error, or even if the specified address does
not exist.
> is a delimiter character which indicates a valid command.
? is a delimiter character which indicates an invalid
command.
AA (range 00-FF) represents the responding 2-character
hexadecimal address of the module.
(cr) is the terminating character, carriage return (0Dh).
4055, 4056S, 4056SO,
4060, 4068, 4069